RainbowAir air purifier activators have been the brand of choice for the past 20 years for hotel owners, apartment managers, restoration companies, auto dealers, detail shops, carpet cleaning companies, dry cleaners, etc. With 4 models to choose from and ozone levels ranging between 250 mg/hr and 2,000 mg/hr, it's easy to see why RainbowAir Activators are asked for by name.